Closure



March 14, 1939. |EBER .2,150,627

` cLosURE Filed DGO. 28, 1937 MM ZZ .202 Z/l y f9.2 IW

BYE TTORNEY,

Patented Mar. 14, 1939 UNITED STATES PATENT offrir:

assignments, to Oscar Lindner, Brooklyn,

Application December 28, 1937, Serial No. 182,045

7 Claims.

This invention relates to closure or fastening devices.

One object of the invention is to provide aI device of the character described having improved means to effect a better closure, and to facilitate the manufacture and assembling of the device for quantity production.

Another object of the invention is to provide a closure of the natureset forth wherein a curved frame member and a spring are interconnected by relative longitudinal movement in an improved manner, so as to avoid accidental release of the spring', and preferably without requiring mechanical operations.

Another object of the invention is to furnish a device of the class alluded to, of such improved arrangement and construction that the frame member and spring are insertable into the preformed hems of a container, for finishing in a particularly simple manner.

Other objects and advantages of the invention will become apparent as the specification proceecls.

With the aforesaid objects in view, the invention consists in the novel combinations and arrangements of parts hereinafter .described in their preferred embodiments, pointed out in the subjoined claims, and illustrated in the annexed drawing, wherein like parts are designated by the same reference characters throughout the several views.

In the drawing:

Figure 1 is a perspective view in open position showing a bag embodying the invention.

Fig. 2 is a plan View of a blank for the frame member.

Fig. 3 is a plan View of the spring member.

Fig. 4 is a'longitudinal central sectional view of the frame and spring members, with the latter shown in course of being connected to the former.

Fig. 5 is a central sectional view of the spring member, taken on the line 5 5 of Fig. 3.

Fig. 6 is a side view of the assembled frame and spring device embodying the invention, in closed position.

Fig. 7 is a sectional view on line 1 1 of Fig. 6.

Fig. 8 is a longitudinal sectional View of the assembled device in closed position, takenv on the line 8 8 of Fig. 6.

Fig. 9 is a similar view of the device in open position.

The advantages of the invention as here outlined are best realized when all of its features and instrumentalitiesare combined in one and the same structure, but, useful devices may be produced embodying less than the whole.

lt will be obvious to those skilled in the art to which the invention appertains, that the same may be incorporated in several different construc- 5 tions. The accompanying drawing, therefore, is submitted merely as showing the preferred exemplication of the invention.

Referring in detail to the drawing, lll denotes v a device embodying the invention. The same may 10 include any kind or shape of bag or container Il having an opening that is controlled by a frame structure l2 embodying the invention. The latter may include a curved rigid frame member I 4 having marginal channels 'l5 along its concave side 15 to form a channel. Connected to the ends of the frame member is a strip spring member i6 arranged so as to snap toward the frame member to lie in the channel thereof in closed position, and to snap away from the frame member to form an oval like opening therewith in open position.

The container ll may be provided with marginal hems Il, i8, the former to receive the frame member Ill and the latter to receive the spring I6.' The fabric of the hem Il sets into the channel under the pressure of the spring I6 as shown. The frame' and spring members are completely concealed in the hems so that no metal is visible. To facilitate opening of the device, any suitable finger piece means l5 may be connected to the spring lli intermediate of the center and an end of the spring.

The frame member l l may be originally formed as a blank 26, having marginal sections 2l that are bent to form the channel anges l5. At the opposite ends of the blanks are the tab sections 22 that terminate in the finger sections 23. The former are bent to project toward each other and away from the main part of the frame member, o as shown at 24. When the frame member has been bent to the curved form, the tabs 2li lie at the concave side of the frame member and form acute angles therewith. The finger sections 23 are bent to project toward each other and also toward the concave face of the frame member as shown at 25. Preferably the ngers 25 terminate in spaced relation to said concave face for a purpose hereinafter described.

The spring member i6 is formed with like open- 50 ings 26 in the opposite end portions thereof, these openings being rather elongated and of sufficient size to loosely receive the lingers 25. One end Cil vportion of the spring may be bent as at 2'1 to lie at a small angle to the plane of the spring. The

extreme ends 28 of the spring are preferably square with the spring to be adapted for seating against the back of the channel member III as hereinafter described. A plurality of perforations 29 may be provided intermediate of an end of the spring and the center thereof, whereby the means I 9 may be secured, for instance, by stitching through the perforations, or in any other suitable manner.

For assembling the frame and spring members I4 and I6, the spring end portion having the bend at 21 is first inserted into the channel and moved in parallel or longitudinal relation therealong until the part having an opening at 21 is inserted Y into the recess formed by the anges I5 and the adjacent tab 24, to thus lie under the adjacent finger or hook 25. Because of the bend at 21, a slight distortion or attening of the spring may be necessary. The nger 25 may now slightly enter the opening 26. Now the spring is moved outward causing the finger to fully hook into and hold the spring. Upon reversely exing the spring, as shown in Fig. 4, the opposite end may be inserted into the corresponding frame recess and under the adjacent nger 25. If desired, the nger at the left may be bent further inward than the one at the right.

With the device I2 thus fully assembled, the same appears in closed position as shown in Figs. 6, 7 vand 8. The tabs 24 form sharp corner recesses, with the spring ends 28 bearing in said corners. The fingers or hooks 25 may lie outside of their openings 26, because the spring is retained by the channel flanges I5 against disengagement. The action and cooperation is substantially'the same when the device I2 lies inthe hems I1, I8 of the container II.

The open position of the device I2 is shown in Fig. 9. It will now be perceived that due to the bend at 21, the adjacent end edge 28 of the spring is caused to seat and bear against the inner concave face of the frame member with the finger 25 bearing on the outer edge of the opening 26. This assures a high degree of stability. On the other end of the device, inger 25 is n loose relation to its opening 26, to afford the requisite clearance for pivotal motion'. However, the bend at 21 may be omitted if desired. The operation will be the same if the device I2 be disposed in the container hems. c

For assembling with the container, the frame and spring members are inserted into the hems l1, I8, and are then interengaged at their ends as described. Then the hems are sewn together to conceal any metal, and finally the nger piece I may be secured in place. sembling is accomplished without the use Aof hinges or special mechanical operations. If desired, however, the iingers 25 may be further bent inward into the openings 26, after the frame and spring members have been assembled, but such an extra operation is not necessary.

I claim:

l. A closure device, including a curved frame member having end tabs at its concave side extending at an acute angle thereto so that said end tabs project outward and toward each other, each of said end tabs terminating in end fingers which project toward each other and inward toward the said concave side, a spring member of sheet material having end openings of sufficient size to freely receive said fingers upon movement of the spring member to lie in open position to form an oval frame structure with said frame member, the latter and the spring member co- Thus the entire asacting with each other so that the' ends of the spring member bear against said tabs when the spring member lies in closed position against the sai-d concave side, said ngers being spaced from said concave side of the frame member to facilitate assembling of the device, and the frame member being of channel form at the said concave side to prevent removal of the spring member in the closed position of the device.

2. A closure device, including a curved frame member having end tabs at its concave side extending at an acute angle thereto so that said 'end tabs pro-ject outward and toward each other,

each of said end tabs terminating in end fingers which project toward each other and inward toward the said concave side, a spring member of sheet material having end openings of suiiicient size to freely receive said fingers upon movement of the spring member to lie in open position to form an oval frame structure with said frame member, the latter and the spring member coacting with each other so that the ends of -the spring member bear against said tabs when the spring member lies in closed position against the said concave side, said fingers being spaced from said concave side ofthe frame member to permit the device to facilitate assembling of the device, and the framemember being of channel form at the said concave side to prevent removal of the spring member in the closed position of the device, one end portion of the spring member being bowed at its adjacent opening in opposite direction to the curvature of the spring member to cause the end edge of the latter to bear in fitted relation againstV said concave side in the open f position of the device, to assure rigidity of the spring member in its open position, with the tab at the bowed portion bearing against the outer edge of its cooperating opening to cause said tted end engagement of the spring member.

3. A closure device including a curved frame member of channel shape along its concave side, said frame member having end tabs at the concave side projecting outward and toward each other and forming recesses with the adjacent channel anges, and a spring member having its ends pivotally engaged with the frame member in said recesses so that the spring is adapted to snap into the channel in the closed position of the device and outward to form an oval with the .i

frame member in the open position of the device,

and the flanges of the frame member closing the ends of the recess to retain the spring member.

4. A closureV device including a curved frame member of channel form along its concave side and having at its concave side and opposite ends fingers that are mounted to project inward toward the concave side and toward each other, and a spring member having end holes therethrough to movably receive the fingers, with the spring being adapted to be snapped inward of the channel and outward of the frame member to close and open the device, the channel retaining the spring against removal from the ngers in the closed position of the device, and the fingers interlocking with the spring to prevent removal thereof in the open position of the device.

5. A closure device including a curved frame member, a spring member, said members being interengaged at their ends so that the spring member is adapted to snap toward and away from the concave side of the frame member for closing and opening the device, and means at one end of the device forl eiectng the interengagement at said end, including a laterally bent tab terminating in an inwardly bent nger, the latter being of less Width than the tab and being spaced from said concave side, the spring member having a hole for loosely receiving the finger, and the adjacent end part of the spring member being inwardly bent so that the end of the latter is adapted tolaterally abut the finger in the open position of the spring member, and. so as to prevent accidental disengagement of the spring member from the finger.

6. A closure device including a curved frame member having at its concave side and opposite ends fingers that are mounted to project inward toward the concave side and toward each other, and a spring member having end holes to movably receive the ngers, with the spring being adapted to be snapped inward of the channel and outward of the frame member, to close and open the device, said fingers lying in spaced relation to the concave side of the frame member to facilitate assembling of the device, and the frame member having at its concave side a channel portion engaging the spring member to prevent removal of the latter in its closed position.

7. A closure device including a. curved frame member and a spring member, said members having interengaging means including opposite end fingers on the frame member projecting toward each other and toward the concave side of the frame member, the spring member having holes for pivotal engagement with the ngers, the latter being spaced from said concave side to receive the spring member, and the intere-ngaging means including a projecting means to prevent accidental removal of the spring member when the latter is snapped into curved form along the concave side of frame member' for closing position, said projecting means. interengaging said members in the closed position of the device.

ISAAC LIEBER. 

